Summary List of SCHED Parameters

COVER INFORMATION:

• VERSION:  Schedule version number. Helps identify latest.
• EXPT:     Short description of project.
• EXPCODE:  Project code.
• PINAME:   Name of Principal Investigator.
• ADDRESS1: Principal Investigator's address for cover
• ADDRESS2: information. Up to 4 lines allowed.
• ADDRESS3: 
• ADDRESS4: 
• PHONE:    Principal Investigator's phone number.
• OBSPHONE: Principal Investigator's telephone number during obs.
• TELEX:    Principal Investigator's TELEX number (obsolete).
• EMAIL:    Principal Investigator's electronic mail address(s).
• FAX:      Principal Investigator's FAX number.
• OBSMODE:  Frequency band, recording system etc.
• OBSTYPE:  Type of observation. Mostly for recorder control
• NOTE1:    1st of 4 comment lines for cover information.
• NOTE2:    2nd of 4 comment lines for cover information.
• NOTE3:    3rd of 4 comment lines for cover information.
• NOTE4:    4th of 4 comment lines for cover information. COVERLET Flag that in-line cover letter follows.

CORRELATOR INFORMATION:

• CORREL:   Correlator to be used. Destination for recordings and log files.
• CORAVG:   Correlator average time.
• CORAVG2:  Alternate correlator average time.
• CORCHAN:  Number of spectral channels per baseband channel.
• CORNANT:  Number of antennas to be correlated.
• CORPOL:   Polarization processing on or off.
• CORSRCS:  Origin of source positions for correlator.
• CORWTFN:  Correlator weighting function.
• CORTAPE:  Type of media on which to send correlator output to user.
• CORDFMT:  Format of export data.
• CORSHIP1: Shipping address for correlator output.
• CORSHIP2:
• CORSHIP3:
• CORSHIP4:
• CORNOTE1: Notes for correlator operations.
• CORNOTE2:
• CORNOTE3:
• CORNOTE4:

PROGRAM CONTROL:

• DEBUG:    Turn on various debugging printouts.
• OVERRIDE: Flag for programmers to bypass restrictions.
• DOSTA:    Restrict processing to specific stations.
• DOVEX:    Write a VEX file.
• VEXTEST:  Allow use of unreleased VEX features.
• EXIT:     Finish interactive input.
• OVERwrit: Overwrite files from previous run of SCHED.
• PLOT:     Invoke plotting part of SCHED.
• SCHedule: Name of file containing rest of schedule.

CATALOGS and other other ``external'' input.

• LINEINIT: Following inputs will be rest frequencies.
• SETINIT:  Name and flag for in-line setup data.
• SRCCAT:   Flag for start of in-line source catalog.
• SRCFILE:  Name of external source file.
• SRCFILE2: Name of second external source file.
• STACAT:   Flag for start of in-line station catalog.
• STAFILE:  Name of external station file.
• TAPEFILE: File name for tape initialization information.
• TAPEINI:  Flag that next group of input is tape initialization.
• EPHFILE:  File containing JPL ephemeris data for planets.
• FREQFILE: File containing standard frequency setups.
• PEAKFILE: File with reference pointing parameters.
• PEAKINIT: Following inputs are for reference pointing.
• SATFILE:  File containing satellite orbital elements.
• PCENTERS: Flag for start of lists of multiple phase centers

GENERAL CONTROL PARAMETERS:

• CALTIME:  Integration time for calibration data.
• DODOWN:   Keep down antennas in scans.
• DOSCANS:  Keep only this scan range. Mainly for operations.
• WRAP24:   Double a 24 hour schedule to allow different start.
• IATUTC:   IAT-UTC for planetary motion cards at VLA.
• INTENTs:  Directives for observing, correlation, and processing.
• LINEPG:   Number of lines per page in operator schedules.
• LST:      Schedule is in LST for specified station.
• NCHAN:    Number of baseband channels (Obsolete - set setups).
• PRECDATE: ``Observe'' date for coordinate conversions.
• SUMITEM:  Items to show in the summary file.
• TANTSTA1: List 1 of stations for Ta measurement requests.
• TANTSTA2: List 2 of stations for Ta measurement requests.

BASIC SCAN TIMING and CONFIGURATION:

• STATions: Station list for scan. Up to 30.
• SOURCE:   Source name.
• QUAL:     Qualifier for source.
• YEAR:     Year of first scan stop time.
• MONTH:    Month number.
• DAY:      Day number. 1 is first day of MONTH. Can be day of year.
• START:    Start time of scan.
• STOP:     Stop time of scan.
• DURation: Duration of scan.
• DWELL:    Duration of scan but start when antennas on source.
• GAP:      Minimum interval between scans.
• PRESCAN:  Time to wait before starting recording (Obsolete).
• PRESTART: Time to start recording before scan start.
• PREEMPT:  Protect scan from preemption at PT and MK for EOP observations.
• GROUP:    Number of scans to repeat.
• REPeat:   Number of times to repeat scan(s).
• SETUP:    Name of file containing VLBA setup information.
• COMMENT:  Comment to appear in schedule.
• SCANTAG:  Name for scan to put in summary tables.

SCAN PROPERTIES:

• LINENAME: Name of group of rest frequencies to use.
• DOPINCR:  Minimum increments for frequency setting.
• DOPPLER:  Set frequency based on velocity for spectral line.
• NODOP:  Turn off doppler calculations.
• DOMKA:    Record on Mark5A during Mark5C observations.
• DOPCAL:   Obsolete form of DOPPLER.
• DOPSRC:   Set frequency based on velocity of this source.
• FREQ:     Up to 16 baseband channel sky frequencies for VLBA.
• BW:       Baseband channel bandwidths.
• CRDCH1:   First main channel for related VLBA legacy channel.
• CRDNCH:   Number of VLBA legacy system channels.
• CRDFREQ:  Force VLBA legacy BBC frequencies separate from RDBE.
• CRDBW:    Force VLBA legacy BBC bandwidth separate from RDBE.
• CRDDOP:   Provoke Doppler setting of VLBA legacy BBCs sparate from RDBE.
• CRDSETCH: List of setup baseband channels to use on VLBA legacy system.
• PCAL:     Mode for pulse cal generators.
• CENTERS:  Use multiple phase centers in processing.
• PEAK:     Peak up on source.
• NOPEAK:   Turn off peak up request.
• POINT:    Convert the scan to a reference pointing scan.
• PKWATCH:  Extra output when AUTOPEAK selected.
• TANT1:    Turn on Ta measurement at the TANTSTA1 stations.
• TANT2:    Turn on Ta measurement at the TANTSTA2 stations.
• TSYS:     Turn on Tsys measurements.
• NOTSYS:   Do not measure system temperature.
• GEOSEG:   Insert a geodetic (DELZN) segment.
• GEOSRCS:  Gives a list of sources for geodetic segments.
• GEOPRT:   Turn on debugging print from geodetic insertion.
• GEOTRIES: Number of trial geodetic segments to test.
• GEOBACK:  Number of look-back scans while selecting geodetic segment sources.
• GEOSLEW:  Relative weight of slew time in selecting geodetic segment sources.
• GEOSLOW:  Stations getting to source this much later than others can be left out of a scan in a geodetic sequence.
• GEOSREP:  Minimum number of scans between repeats of the same source in a geodetic sequence.
• GEOLOWEL: Upper boundary of ``low'' elevation region for geo sources.
• GEOHIEL:  Lower boundary of ``high'' elevation region for geo sources.
• PN3DB:   Do VLBA half power tracking tests.
• NOPN3DB: Turn off VLBA tracking tests.
• PTVLBA:   Do VLBA pointing sequence.
• NOPTVLBA: Turn off VLBA pointing measurements.
• TAVLBA:   Request Tant measuring mode.
• NOTAVLBA: Turn off VLBA antenna temperature measurements.
• PTDUR:    Duration of each step in VLBA pointing sequence.
• PTSLEW:   Time to allow for slewing to source in pointing sequence.
• AZCOLIM:  Azimuth colimation offset for scan for VLBA.
• ELCOLIM:  Elevation colimation offset for scan for VLBA.
• FOCUS:    Focus offset for scan for VLBA.
• ROTATION: Subreflector rotation offset for scan for VLBA.
• ROTPAT:   Expand pointing patterns to include focus/rotation.
• ROTOFF:   Rotation offsets for ROTPAT pattern.
• FOCOFF:   Focus offsets for ROTPAT pattern.
• CRDLINE:  Arbitrary line for VLBA files for on-line testing.

RECORDER CONTROL (Obsolete parameters after switch to disk):

• MINPAUSE: Minimum record stop time between scans.
• RECord:   Record on tape this scan. Non-zero to not record.

The following parameters are obsolete as they only applied to tape.

• AUTOTAPE: Request automatic tape changes. Give tape time.
• FASTFOR:  Fast foreward the wide band tape.
• REWIND:   Rewind wide band tape.
• REVERSE:  Reverse direction of recording of wide band tape.
• TAPE:     Force a tape change. Reset AUTOTAPE reference time.
• TPREF:    Reference time for Mark II tape changes.
• TAPESYNC: Synchronize tape changes (see warnings).

eVLBI CONTROL:

• DATAPATH: Controls where data goes first.
• GRABTO: Controls where recorded data goes.
• GRABTIME: Controls which data are sent.
• GRABGAP: Controls how much time is needed to send data.

OPTIMIZATION (Beware -- experimental features!):

• OPDUR:    Duration for experimental optimizing mode.
• OPELPRIO: Two elevation ranges in which OPSKIP not active.
• OPMINEL:  Minimum elevation for an "up" source.
• OPMINANT: Minimum number of antennas in a scan. OPMISS   For OPTMODE = SCANS, only keep this scan if this many scans have been skipped.
• OPNOSUB:  Don't subarray in experimental optimizing mode.
• OPSKIP:   Skip source OPSKIP times unless in priority elevaion range.
• OPTLOWT:  Time scale for low el samples in OPTMODE = CELLS or CSUB.
• OPTMODE:  Optimization mode.
• OPPRTLEV: Print level for optimizing routine (mainly mode HAS).
• OPTSLEW:  Time scale for slews in OPTMODE = CELLS or CSUB.
• OPHA:     Prefered hour angle for scan OPTMODE=HAS.
• OPHAWID:  Tolerance for hour angle OPTMODE=HAS.
• OPHAWT:   Importance of HA vs other weights OPTMODE=HAS.
• OPHASTA:  Reference station for hour angles OPTMODE=HAS.
• OPMINSEP: Minimum separation of scans on a source OPTMODE=HAS.
• OPSLEWWT: Importance of slew time vs other weights OPTMODE=HAS.
• OPSLEWTI: Scale time for slew time weights OPTMODE=HAS.
• OPHLIMWT: Importance of near limits vs other weights OPTMODE=HAS.
• OPHLIMTI: Importance of HA vs other weights OPTMODE=HAS.
• OPHMAXDT: Maximum offset from desired HA to consider OPTMODE=HAS.
• HIGROUP:  Group a few scans from which to choose one based on El.
• AUTOPEAK: Insert reference pointing scans.
• MAPLIM:   Lat/long limits for station map when OBSTYPE=CONFIG
• GRIDNR:   Number of radial cells in uv optimization grid.
• GRIDNT:   Number of azimuthal cells in uv optimization grid.
• GRIDMIN:  Inner radius of uv optimization grid.
• GRIDMAX:  Outer radius of uv optimization grid.
• GRIDW0:   Characteristic radius for linear to logarithmic grid spacing.
• GRIDSTEP: Set the spacing of points for quality grid around a station.
• GRIDMEAS: Set which quality measure to use.
• GRIDVLA:  Specify that only baselines to VLA antennas are to be used.
• UVMFS:    Show effect of MFS in UV plots.

SPECIAL VLA PARAMETERS (These are now obsolete):

• VLAINTEG: VLA correlator integration time.
• VLAPTIME: Duration of phasing subscans on the EVLA
• VLAMODE:  VLA observing mode.
• VLAPEAK:  Control reference pointing.
• VLANTSYS: Turn off VLA system temperature corrections.
• VLAPSRC:  Phasing source for VLA observations.
• VLARFANT: Reference antenna for single dish or phasing.
• VLATSYS:  Turn on VLA system temperature corrections. Also VLANTSYS.
• VLATYPE:  Type of VLA observations.
• VLAUSERN: Obsolete - VLA user number.